210 CONTRIBUTIONS TO CANADIAN PALiEONTOLOGY. 



CORNULITES (OrtONIs) SUBL/EVIS. (N. Sp.) 



Plate 28, flgs. 6, 7. 



Tube minute, conical, slender, slightly flexuous and attached through 

 out its entire length to some foreign body: aperture circular. Surface, 

 as seen under a lens, nearly smooth and marked only with fine trans- 

 verse lines of growth at irregular intervals. 



Length of an average specimen, five millimetres : breadth of the 

 same at the aperture, nearly a millimetre and a half 



Hay Eiver, forty miles above its mouth, E. G. McConnell, 1881, and 

 Mackenzie Eiver, at the " Eamparts," E. G. McConnell, 1888 : a few 

 specimens on shells and corals. 



These differ from specimens of Ortonia intermedia of Nicholson, from 

 the Hamilton Formation of Ontai'io,* in the entire absence of the 

 ''strong encircling, sometimes lamellose annulations or ridges " which 

 are said to characterize that species, but tubes almost, if not entirely 

 devoid of annulations, are occasioDally found in the Hamilton shales 

 at Thedford and Arkona, Ont. 



POLYZOA. 



Hedebella Canadensis, Nicholson. 



Plate 28, figs. 8 and 8a. 



Alcclu (?) Canadensis, Nicholson. 187:^ Canad Nat., vol. VII, 2nd Ser., p. 146. 

 Slomalopora (?) alteniata, Hall and Whitfield. 1873. Twenty-third Reg. Rep. St. 



N. y., p. 235, pi. X, figs. 7, 8. 

 Aulopora (?) Canadensis, Nicholson. 1874. Rep. Pal. Prov. Ont, p. 124, figs. 



57a-e. 

 Hederdla Canadensis, Hall. 1881. Trans. Alb. Inst, vol. X, p. 194. 

 " " 1885. Rep. St Geol. for 1883, p. 53. 



1887. Pal. St N. Y., vol. VI, p. 277, pi. Ixv, figs. 

 1-8, 14-16. 



Hay Eiver, forty miles above its mouth, E. G. McConnell, 1887 : 

 a few colonies attached to PhiUipsastrcea Hennahi, Orthis striatula, 

 Spirifera disjuncta and Atrypa reticularis. Athabasca Eiver, three miles 

 below the Calumet, E. G. McConnell, 1890 : two specimens, attached 

 to Orthis striatula. 



• Rop. PatooDt. Prov. Ontario, 1874, p. 122, figa. 55 a, b. 



